Drier for grain



(No Model.) 2 Sheets-Sheet 1.

H. A. HOGEL.- DEIEE EOE GRAIN, SEED, &c. No. 431,055. Patented July 1, 1890.

E44 MW M M A TTOR/VEKS (No Model.) 2 Sheets-Sheet 2.

H. A. HOGEL. DRIER FOR GRAIN, SEED, 8m. No. i31,055. Patented July 1, 1890.

WITNESSES Ill/VE/VTOR MW'M Miffjj ATTORNEYS.

UNITED STATES PATENT OFFICE.

HASCAL A. HOGEL, OF SYRACUSE, NE? YORK.

DRIER FORGRAIN, SEED, 84,6.

SPECIFICATION forming part of Letters Patent No. 431,055, dated July 1,1890.

Application filed August 31, 1887. Renewed May 26, 1890. Serial No. 353,116. (No model.)

To all whom it may concern.-

Be it known that I, IIASGAL A. HOGEL, residing in Syracuse, Onondaga county, State of New York, have invented an Improved Drier for Grain, Seed, &c., of which the following is a complete specification, reference being had to the accompanying drawings, in which- Figure 1 is a vertical longitudinal central section of my improved drier, the line It It, Fig. 2, indicating the plane of section, the cylinder A being partly in elevation and partly broken away. Fig. 2 is a vertical cross section of the same, taken on the plane of the line 0 c, Fig. 1.

The object of this invention is to produce a drier for grain, cottonseed, and the like in which the matter to be dried shall be exposed to external heat and also a current of heated air, all produced from the same fire, and in which, moreover, additional heat given out by a steam-pipe may be utilized.

The invention consists in the novel arrangement and combination of parts hereinafter more fully specified.

In the accompanying drawings, the letter A represents an approximately horizontal cylinder made of metal and open at the ends. This cylinder has bearing-rings a at or near its ends, which rest on frictionn'ollers b, that are supported 011 the framework B of the drier, so that the cylinder A may be readily revolved.

For the purpose ofrevolving the cylinder I have shown the same to be provided with a toothed ring (1, into which mesh the teeth of a pinion e on a driving-shaft G, to which driving-shaft rotary motion is imparted by suitable mechanism. (Not necessary to be shown in the drawings.) A supply spout or funnelD enters one of the open ends of the cyl inder A for the purpose of delivering thereto the matter to be dried. That end of the cylinder A which receives the supply-spout D is slightly higher than the other end of the cylinder. On the inner walls of the cylinder A are or may be attached ribs f, as in Fig. 2, or lugs g, as in Fig. 1, for the purpose of lifting the material to be dried during the rotation of the cylinder and causing it to drop, so that the material to be dried will not only move along the lower part of the cylinder, but will be lifted and dropped alternately until it finally reaches the open lower discharge end of said cylinder, where it falls into a suitable hopper 7t, whence it is removed by an elevator E or other contrivance to a desired recep tacle.

Longitudinally through the center of the cylinder A passes a tube F, of smaller diameter than the cylinder, as indicated in the drawings, which tube F is by preference firmly secured by transverse braces 2' within the cylinder, so that it may revolve in unison therewith; but the pipe F may be supported in stationary bearings, so that it need not revolve together with the cylinder A. This tube F'receives at one end steam from a pipe j, and it discharges the steam at the other end into a pipe Z. Thus the heat of the steam in the pipe F assists in drying the contents ofthe cylinder A, which, when dropped by the wings or ribs f g, are moreover brought to some extent into bodily contact with the steam-heated surface of the pipe F.

The cylinder A, with its appurtenances, is set up in a furnace G, which has a suitable grate'm or other contrivance for receiving the fire, so arranged that the heated products of combustion will pass from the fire-place to and around the cylinder A, and finally escape through a chimney n. Besides heating the cylinder A, these products of combustion also heat the air-pipe II, which communicates at one end with a suitable blower I, communieating with the open air, and at the other open end enters the open end of the cylinder A. By means of the blower I a current of air is forced through the pipe H, heated by the products of combustion from the fireplace, and conveyed in the heated condition into the open end of the cylinder A.

For the purpose of increasing the heating effect upon the pipe H of the products of combustion I coil said pipe in the combustion-chamber of the furnace or carry it back and forth in sundry lengths, as indicated in Fig. 2, so as to obtain a considerable surface of said pipe for contact with the heated products of combustion; but the pipe H may be heated by other means than by the furnace G, which heats the cylinder A. The heated current of air is entered by preference into the discharge end of the cylinder A, so that it will pass through said cylinder in direction opposite to the material to be dried. The

heated air finally escapes through a pipe 0.

For the purpose of preventing particles of the matter to be dried adhering to the inner Walls of the cylinder A, which they are liable to do while moist, I have provided a series of taps or hammers J J, which are to tap or strike the outer circumference of the cylinder A from time to time, and thereby vibrate the walls of said cylinder and disengage from its inner side any particles that may adhere thereto by moisture. These taps or hammers J are connected by springs p to levers q, that are actuated by cams 1" on a rotating shaft L, as indicated in Fig. 2, so that when the shaft L is revolved the levers (1 will be oscillated and the springs 10 alternately distended and contracted, thereby imparting to the taps the desired gentle or sufficient tapping or striking movement.

Having now described the construction of the drier, I will briefly state how it operates. The seed or other substance to be dried is fed into the upper end of the cylinder A by the supply-spout D. The cylinder A is revolved, and the matter fed into the cylinder is thereby agitated and gradually fed along within the same till finally it escapes by the hopper h or direct into any other receiver. Meanwhile the pipe F is heated by steam, and at the same time heated air is conveyed through the cylinder A, the exterior of the cylinder A being, moreover, exposed to the heat of the furnace. Hence it appears that the matter heated from the outside. Whatever moisture is given out by the matto the drying effect. meanwhile prevent the clogging of the matter to be dried is carried off by the current of air, which current being also heated adds The taps or hammers ter to be dried and complete the satisfactory operation of the parts.

Having now described my invention and the manner in which it may be carried into eifect, I desire to state that what I claim as new, and desire to secure by Letters Patent, 1s-

In a drier, the combination of the rotary open-ended cylinder A and furnace G, for

heating the exterior of said cylinder, with the steam-pipe F, placed longitudinally within the cylinder A, and externally-heated pipe H, receiving heat from the furnace G and entering the open end of the cylinder A for conducting heated air into the cylinder A, all arranged substantially as and for the purpose specified.

HASCAL A. IIOGEL. Witnesses:

HARRY M. TURK, GUSTAV ScHNnPPn. 

